When you stop taking plavix for a procedure, can swelling in the ankles occur?

my mother stopped taking plavix for a tooth extraction. five days after not taking the plavix she started to have swelling in the ankles, and itching. is that a side effect? she did not have that problem previously. and she will have to start taking it again in one day. the only other difference in her routine was having to take clindamycin. is there a connection?